AP STA B2 CCR — NGS AE6596 — Contra Costa County, US

This triangulation station is part of the National Geodetic Survey's network, which establishes the foundational horizontal and vertical control for surveying and mapping across the United States. Located in Contra Costa County, California, at coordinates 37.98290° N, 122.06147° W, this trig point serves as a reference for local and regional surveys, engineering projects, and spatial data collection. The ellipsoidal elevation of -25.5 meters places this station below the reference ellipsoid. Triangulation stations such as this provide monumented positions of known accuracy essential for cadastral surveying, infrastructure development, and geodetic computations. Verification and documentation of benchmark locations remain valuable for maintaining survey network integrity and ensuring consistency in spatial referencing for professional and scientific applications.

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